CN105008782B

CN105008782B - Volume control device

Info

Publication number: CN105008782B
Application number: CN201480009743.3A
Authority: CN
Inventors: 福岛宪司
Original assignee: SMC Corp
Current assignee: SMC Corp
Priority date: 2013-02-20
Filing date: 2014-02-14
Publication date: 2018-01-09
Anticipated expiration: 2034-02-14
Also published as: JP2014160424A; WO2014129407A9; TWI537503B; TW201441515A; DE112014000513B4; WO2014129407A1; DE112014000513T5; CN105008782A; US20150362089A1; KR101741760B1; KR20150107856A; US9664302B2

Abstract

A kind of volume control device, with the needle valve (22) in main part (26), and it is configured to make needle valve (22) move forward and backward in main part (26) by the rotation of handle (20), therefore adjusts the flow of the fluid flowed between first port (12) and second port (16).Handle (20) is covered (24) and surrounded to prevent adjusted flow from changing.

Description

Volume control device

Technical field

The present invention relates to a kind of volume control device, the volume control device can for example be pressed by the shift control of valve body The flow of the fluids such as power fluid.

Background technology

The applicant has been proposed that a kind of volume control device, and the volume control device is via pipeline and such as cylinder Fluid pressure device connects, and the fluid control device by the position of regulation valve body and be fed to fluid pressure device and From the flow of the fluid of fluid pressure device discharge, the operation of fluid pressure device can be controlled (referring to Japanese Laid-Open Patent No.2011-149488)。

The content of the invention

The present invention proposes for above-mentioned proposal, the purpose is to provide a kind of volume control device, the volume control device Previous flow set in advance can be avoided because the valve body position set is shifted over and is changed.

To achieve these goals, it is a feature of the present invention that a kind of volume control device, is configured to pass through needle valve A pair of first ports of shift control and second port between the flow of fluid that flows.Specifically, the volume control device bag Contain：

The first noumenon, the first noumenon includes first port, and the first noumenon includes link mechanism, supply or discharge stream The pipeline of body is connected to the link mechanism；

Second body, the second body is connected to the first noumenon, and second body includes second port, and fluid passes through this Second port is discharged or supply；With

Handle, handle is connected to needle valve, and handle is configured under the spinning movement of handle, by making needle valve It is axially displaced to adjust the flow of fluid.

The volume control device further removably surrounds the handle comprising lid, lid.

According to the present invention, because providing the lid for removably surrounding handle, therefore the lid is being arranged on hand After on handle, handle is prevented to be touched.Therefore, it is possible to prevent the flow of fluid that previously passed handle set from changing.

Further, in the present invention, projection, which can be only fitted to, is covered, and the projection is engaged with handle so that lid attachment is in one's hands Handle.

According to said structure, because the lock-out state between projection and handle can be realized, therefore can by the presence of lid To prevent from having been used to set the further operation of the handle of the flow of fluid, it is possible thereby to ensure that the flow of fluid is in stable State.

In addition, it is a feature of the present invention that release component configuration is being covered and by projection configuration in release component On surface.

Due to above-mentioned structure, lid can remove from handle when needed, and set stream by readjusting handle The expectation flow of body.

Further, it is a feature of the present invention that shoulder portion configuration is in the outside of handle, and the shoulder portion is prominent with covering Play engagement.

According to said structure feature, it can prevent lid from being removed from the shoulder portion of handle.

Further, it is a feature of the present invention that the groove that configuration is covered in the release component covered by being arranged on is formed, release Put component to be bent outwardly by groove, so as to discharge the engagement of projection and handle.

In such a way, because release component and lid be integrally formed and cover can by bend release component and with Handle separates, therefore has not a particle of difficulty when resetting the flow of fluid.

Further, it is a feature of the present invention that arc opening is arranged in lid, the arc opening is configured to wherein Insert the leg member of tool.In addition, by the way that tool is inserted into arc opening, tool is bent outwardly release component, so as to discharge The engagement of projection and handle.

In such a way, because lid can when making the bending of release component by the way that tool to be inserted to the arc opening of lid Separated with handle, therefore difficulty is had not a particle of when resetting the flow of fluid.

Further, it is a feature of the present invention that lid is equipped with handle portion, the handle portion is configured to be attached Constrained Component.

In such a way, by the way that the confining part of such as line etc. is attached into handle portion, can avoid covering and flowing Amount control device separates.

Further, it is a feature of the present invention that the first noumenon includes main part and and the axle extended in the axial direction The vertically arranged coupling part in line direction.In addition, lid includes otch, the otch and the coupling part for being located at main part side Proximal part adaptation.

According to the structure, because otch is adapted to the proximal part of the coupling part positioned at main part side, therefore energy Volume control device is enough avoided to increase size or weight due to have mounted thereto lid.

Further, it is a feature of the present invention that handle portion configuration is fitted with the proximal part positioned at main part side The surface for the otch matched somebody with somebody.

By providing said structure, constraint component can easily connect to such as pipeline.

According to foregoing invention, following beneficial effect is obtained.

By making the above-mentioned of the flow of fluid that needle valve displacement flows to control between first port and second port In volume control device, by covering the handle around the shifting function for performing needle valve, the fluid being adjusted can be avoided Flow any change.

In the preferred embodiments of the present invention shown by way of illustrative example and with reference in the following description of accompanying drawing, Above and other purpose, feature and the beneficial effect of the present invention will become more apparent.

Brief description of the drawings

Fig. 1 is the stereogram for the general structure for showing volume control device according to an embodiment of the invention；

Fig. 2 is the exploded partial perspective view for the state for showing that volume control device middle cover shown in Fig. 1 is removed；

Fig. 3 is the vertical section figure along the III-III lines of the volume control device shown in Fig. 1；

Fig. 4 is the vertical section figure along the IV-IV lines of the volume control device shown in Fig. 1；

Fig. 5 is the stereogram of the needle valve locally omitted of the volume control device shown in Fig. 1；

Fig. 6 is the sectional view along the line VI -- VI of the volume control device shown in Fig. 4；

Fig. 7 is the exploded partial perspective view for the modification for showing the lid in embodiments of the invention；

Fig. 8 is the exploded partial perspective view of tool and the volume control device shown in Fig. 7 when seeing from below；

Fig. 9 is the vertical section figure along the IX-IX lines of the volume control device shown in Fig. 7；With

Figure 10 is to show that the instrument that can remove lid from handle in the volume control device shown in Fig. 7 inserts opening for lid The vertical section figure of state in mouthful.

Embodiment

Hereinafter, the preferred embodiment according to volume control device of the invention will be described in detail with reference to the attached drawings.

In Fig. 1 to 4, reference numeral 10 represents volume control device according to an embodiment of the invention.

As shown in Figures 1 to 4, volume control device 10 includes：The first noumenon 14, the first noumenon 14 include first port 12, pressure fluid is supplied by first port 12；Second body 18, second body 18 include second port 16, pressure current Body is discharged by second port 16, and the second body 18 is assembled into the bottom of the first noumenon 14；Handle (control member) 20, hand Handle 20 is used to adjust flow and is rotatably disposed in the top of the first noumenon 14；Needle valve 22, the needle valve 22 insertion handle In 20, and by making needle valve 22 in the inside of the first noumenon 14 along axis direction (arrow under the spinning movement of handle 20 Head A and B direction) move forward and backward, the needle valve 22 controls the pressure flowed between first port 12 and second port 16 The flow of fluid (for example, compressed air)；With lid 24, the lid 24 removably surrounds handle 20.

The first noumenon 14 with lower part by being formed：The hollow main portion 26 formed by such as resin material, main body Part 26 extends predetermined length on axis direction (direction of arrow A and B)；Coupling part 28, coupling part 28 with master The axis direction of body portion 26 vertically extends, and including first port 12 on its interior；With the first connection part 30, first The outer circumferential side that connection part 30 forms in main part 26 is connected in parallel to the second body 18.

Main part 26 includes：Form the first barrel 32 in its bottom point；Second barrel 34, the second tubular Part 34 and the top of the first barrel 32 are integrally formed and diametrically expanded relative to the first barrel 32；With The top of three barrels 36, the 3rd barrel 36 and the second barrel 34 is integrally formed and relative to the second cylindrical portion 34 are divided diametrically to expand.In addition, through hole 38 has been internally formed it in the first to the 3rd barrel 32,34,36.

Through hole 38 is formed as its diameter to become big corresponding to the step-wise manner of the first to the 3rd barrel 32,34,36. Needle valve 22 is displaceably stretched into through hole 38 in the axial direction.

On the outer surface of the first barrel 32, check-valves 44 passes through annular made of synthetic rubber or the like Groove 40 is mounted.Check-valves 44 is included in flange 46 prominent in radially outer mode.Flange 46 is formed with downwardly open Generally V-shaped section, and its end flexibly abuts with the inner wall surface of the second body 18.

The multiple fins 48 for being radially outward directed and along the circumferential direction equally spaced separating are formed in the first barrel 32 lower end.Fin 48 is used to carry out rectification to the fluid flowed between first port 12 and second port 16.

Formed with a pair of intercommunicating pores 50a, 50b on the periphery wall of the second barrel 34, itself and through hole 38 and first The space connection of the inside of connection part 30.Intercommunicating pore 50a, 50b are generally rectangular in shape.

Boundary between the first barrel 32 and the second barrel 34 can be sat formed with valve seat 52, needle valve 22 On the valve seat 52.In fact, the shoulder portion 42 for the needle valve 22 being described later on is sat on valve seat 52.The O-ring of diagram It can be arranged on the shoulder portion 42.

First connection part 30 is integrally formed in the outer surface between the second barrel 34 and the 3rd barrel 36 On.Therewith, the coupling part 28 extended in a radially outward direction is integrally formed in the outer of the first connection part 30 In a part for perisporium.

First engaging portion 56 is arranged on the top of the 3rd barrel 36, on the first engaging portion 56, multiple triangles The tooth 54 of tee section equally spaced protrudes along its outer surface.As will be discussed further below, the first engaging portion 56 be arranged to Engage second engaging portion 110 of handle 20.

In addition, it is respectively arranged below the first projection 58 and the second projection 60, the first projection 58 in the first engaging portion 56 Project radially outwardly, the second projection 60 is further formed at the lower section of the first projection 58 and its diameter is less than the first projection 58.

In the case, first annular groove 57 forms the lower end in the first connection part 30, and the second annular groove 59 is formed In the top of first annular groove 57.O-ring 62 is arranged in first annular groove 57.The O-ring 62 and be described later on second The inner peripheral surface extruding contact of the fastening member 90 of body 18.On the other hand, from the internal perisporium end of secure component 90 to outer ring Prominent pawl 92 is fitted in the second annular groove 59.Main part 26 is so prevented to be drawn out from the second body 18.

Nut 66 is arranged on inside the 3rd barrel 36.As shown in Figures 3 and 4, the negative thread and needle valve on nut 66 22 pin thread 122 engages, as described later.

In the proximal lateral of first port 12, connecting hole 70 is formed by stepped portion 68.The connecting hole 70 is with being arranged on master Flow path 72 connects between the periphery of body portion 26 and the first connection part 30.The link mechanism 76 being connected with pipeline 74 is formed In first port 12, pressure fluid is supplied by pipeline 74.

Link mechanism 76 includes：Chuck 78, chuck 78 engage with the pipeline 74 in insertion first port 12；Guide portion 80, Guide portion 80 surrounds chuck 78；The release bushing 82 that can be shifted along guide portion 80, the release bushing 82 make the remote of chuck 78 End expansion broadens, so as to discharge the engagement state with pipeline 74；With sealing ring 84, sealing ring 84 is against the periphery of pipeline 74 Surface.

Second body 18 is formed by such as resin material.The attachment members 88 for being carved with screw thread 86 thereon are formed in the second body On the excircle of 18 one end, the second body 18 the other end formed with cross section be hexagon fastening member 90.With reference to Numeral 94 illustrates the flow path to be formed between the internal perisporium of the first barrel 32 and the second body 18.The flow path 94 connect with flow path 72.

When the volume control device 10 of the present embodiment is attached to another fluid pressure device S or the like, pass through The instruments such as the not shown spanner of cross sectional shape using fastening member 90, the fastening member 90 are used.

Handle 20 is formed as drum with the end, and the base section 98 of plate-like is formed in one end of handle 20, annular Outer wall 100 is formed as the neighboring protrusion along the another side of base section 98, and inwall 102 is formed as in its inner circumferential side It is prominent.Adjustment member 107 is contained in the deformable coffin 106 formed by inwall 102 (referring to Fig. 6), adjustment member 107 form in one end of the axle 104 of composition needle valve 22.Can as shown in figure 5, having when adjustment member 107 is seen in plan view The rectangular shape of deformation, as shown in fig. 6, being adapted in the inwall 102 of handle 20.

In fact, the first barrel 32, the second barrel 34 and the 3rd cylindrical portion have been inserted through it in needle valve 22 In the state of points 36, the inwall of the inwall 102 of handle 20 along the 3rd barrel 36 is inserted into.Therefore, outer wall 100 is arranged on On the outside of 3rd barrel 36.

As shown in Fig. 2 on the outer surface of outer wall 100, multiple clamping components (shoulder portion) 108 are provided with, clamp structure Part 108 extends circumferentially to project radially outwardly at equal intervals along axis direction.When handle 20 is by not shown When operator performs rotation process, clamping components 108 play a part of to prevent or prevent to skid.In addition, except clamping components 108, origin unit 109 is additionally provided with handle 20, the object of reference as the rotary motion of handle 20.In addition, base section 98 Arrow 111a, 111b are provided with surface, to indicate its direction of rotation.

Second engaging portion 110 is engaged with the tooth 54 of the first engaging portion 56, and is formed as in the proximal lateral of outer wall 100 Internal perisporium on it is prominent.Second engaging portion 110 is constructed by cross section for the tooth 113 of triangle, and tooth 113 is out of outer wall 100 Perimeter surface is radially-inwardly protruded, and circumferencial direction of multiple teeth 113 along handle 20 is set with equi-angularly space.

Hanger components 112 are bent radially inward with right angle, and are configured in the distal end of outer wall 100.Hanger components 112 along The circumferencial direction of handle 20 is configured with multiple (for example, three positions) with equi-angularly space.When 20 upward displacement of handle, suspension hook Part 112 overcomes or crossed the second projection 60 and engaged with the lower surface of the first projection 58.Therefore, by preventing handle 20 from entering One step upward displacement, hanger components 112 act the function of preventing that handle 20 is drawn out.

Needle valve 22 includes：Positioned at the control section 114 of its one end, the control section 114 can control the flow of fluid； Shoulder portion 42, shoulder portion 42 are connected to the top of control section 114, and can seat be located on the valve seat 52 of the first noumenon 14； With axle 104, the axle 104 integrally extends from shoulder portion 42 in the axial direction.

Control section 114 includes the groove of the notch 118, its incision and cross section shape triangular in shape, and the groove of the notch 118 extends To intersect in one end of control section 114 with axis direction.As the groove of the notch 118 extends to the side of axle 104, its cross section chi It is very little to become larger (referring to Fig. 3).

Annular groove 119 is arranged on the outer surface of needle valve 22, and O-ring 120 is arranged in annular groove 119.The O-ring 120 are pressed the inner peripheral surface of contact through hole 38.

Pin thread 122 is engraved on the outer surface of axle 104.Inside of the pin thread 122 with being fixed on main part 26 The negative thread of nut 66 screws togather.

As illustrated in fig. 1 and 2, lid 24 is formed as cylindrical shape with the end, and is removably attached to handle 20.Handle Part 124 is arranged on (referring to Fig. 2) on the outer peripheral portion of the upper end of lid 24.The end of handle portion 124 lid 24 upper turn Corner, the other end terminate at the periphery wall of lid 24.Release component 126 is cut into the U-shaped being downwardly oriented, and is formed in periphery The side of wall, substantially 90 positions spent circumferentially are moved left and right from handle portion 124.The release component 126 is diagonal Symmetrically arranged a pair of ground.Each release component 126 a pair of vertical slots 136 by being arranged on the periphery wall of lid 24 respectively The level trough 138 connected with the upper end with vertical slots 136 is formed.On the other hand, the U-shaped formed below of handle portion 124 is cut Mouth 128, its round-shaped of circular proximal part with coupling part 28 is adapted, so that circumferentially square from otch 128 To periphery wall be used as around the first noumenon 14 circle segment 130.

When lid 24 is installed on above handle 20, handle portion 124 is outside parallel to the longitudinal direction of coupling part 28 It is prominent.Not shown confining part, such as distribution, it could attach to handle portion 124.

The 3rd projection 140 protruded towards axis is provided with the inner peripheral surface of release component 126 (referring to Fig. 3).When When lid 24 is externally mounted to above handle 20, the 3rd projection 140 engages with the basal surface 144 of the clamping components 108 of handle 20, So as to prevent lid 24 from being shifted relative to handle 20.

Volume control device 10 according to an embodiment of the invention constructs essentially as described above.It is described below flow control The operation of device 10 processed and advantage.

As shown in Fig. 2 lid 24 is removed from handle 20 and the connection between first port 12 and second port 16 is blocked Fully closed condition, and the confined state of rotation displacement of handle 20 is referred to as original state.

More specifically, fully closed condition refers to that the shoulder portion 42 of needle valve 22 is located on valve seat 52, and first The state that connection between port 12 and second port 16 is blocked.Further, the confined state of the rotation displacement of handle 20 (rotation locking state) refers to that handle 20 is moved down so that the first engaging portion 56 and the second engaging portion 110 in Fig. 4 It is engaged with each other, thus limits the state of any rotation displacement of handle 20.

In above-mentioned original state, the screw thread that is formed on the attachment members 88 of the second body 18 of volume control device 10 86 are screw-inserted into figure in the internal thread of the fluid pressure device S of not illustrated such as air pressure cylinder a port.It is similar Ground, the volume control device 10 with same structure are attached to another port of air pressure cylinder under above-mentioned original state. Below, because two volume control devices 10 for being attached to above-mentioned cylinder operate in the same way, as needed, below One of volume control device 10 will be described only.Next, pipeline 74 from link mechanism 76 release bushing 82 side It is inserted into stepped portion 68.When pulling out pipeline 74 slightly outwards, the end of chuck 78 is bitten in pipeline 74, therefore prevents pipeline 74 depart from.

Next, in Fig. 4, when holding handle 20 and pulling up, form hanging on the outer wall 100 of handle 20 Hook part 112 is crossed the second projection 60 and abutted with around the lower surface that the first projection 58 is formed.When hanger components 112 are crossed Second projection 60, when then being abutted with the lower surface of the first projection 58, operator can determine with sensation.In such a way, In the state of hanger components 112 abut with the lower surface of the first projection 58, prevent handle 20 from further dividing from main part 26 From.In this condition, the adjustment member 107 of needle valve 22 stills remain in what is abutted with the side surface of the inwall of handle 20 102 State.

Then, operator's rotary handle 20 on the direction shown in arrow 111a in fig. 2.Correspondingly, in needle valve 22 Under the action of the internal screw-thread screw of external screw thread 122 and nut 66, in Fig. 4, needle valve 22 moves up.Therefore, needle valve is worked as When 22 shoulder portion 42 is away from valve seat 52, forms the notch recess 118 in one end of needle valve 22 and also move up, then connect The first port 12 of part 28 and the second port 16 being arranged in the second body 18 are positioned to by being formed in main part 26 In intercommunicating pore 50a, 50b connection.

In addition, after handle 20 rotates up in arrow 111a side, the rotary motion of handle 20 is in position It is stopped.Therefore, between the barrel 32 of notch recess 118 and first of needle valve 22 or the inwall of the second barrel 34 Aperture area be determined.In this state, when the compressed air from such as compressed air supplies (not shown) from When being connected to the supply of pipeline 74 of the volume control device 10 for the opposite side for being arranged on cylinder, check-valves is made in compressed air After 44 flange 46 is bent outwardly in the axial direction, i.e. when preventing compressed air to lead to flow path 94, compression is empty Gas can only be by being adjusted the notch recess 118 of position, and flows out to outside from second port 16.In other words, compress The flow of air is throttled by notch recess 118.During the action, in figure the movement of the piston of not illustrated cylinder interior with And the opening between the inwall of its equal barrel 32 (or second barrel 34) of incision groove 118 and first of speed Passage controls, and can be grasped to a certain extent by operator.

It is assumed that operator is satisfied with the speed of piston, pass through the stream of the present embodiment in a port for being connected to above-mentioned cylinder Also identical operation is performed in amount control device 10, the needle valve 22 of its inside is adjusted.Now, by reference to another The position that the origin unit 109 of the handle 20 of volume control device 10 indicates, the positional information of origin unit 109 can be utilized.

Therefore, if desired flow control can not be performed, operator further rotates on arrow 111a direction Handle 20 or according to situation on arrow 111b direction rotary handle 20, therefore needle valve 22 can be controlled to enter first Run through degree inside barrel 32.Now, because the origin unit 109 formed on handle 20 indicates the rotation of handle 20 Origin, it can easily confirm the degree that handle 20 has been rotated.

In addition, after the delivery flow for the air for having been carried out making cylinder reaches the adjustment of expected rate, in Fig. 1 extremely In 4, operator presses down on handle 20.Therefore, the hanger components 112 of handle 20 cross to be formed in main part 26 second Projection 60 is simultaneously moved to the lower section of the second projection 60, and as shown in figure 4, hanger components 112 are parked in the front of coupling part 28.Cause This, in the state of pressing down on handle 20 and completing, the first engaging portion 56 of main part 26 is positioned to the with handle 20 Engage two engaging portions 110.In this case, because main part 26 is integrally assembled together with the second body 18, because This limitation 20 further spiral rotating of handle.Correspondingly, it is ensured that the desired speed of the piston of cylinder.

According to the present embodiment, cylinder piston speed as described above by fixation in the state of, lid 24 is from the outer of handle 20 Side is fitted in above handle 20.More specifically, using the U-shaped otch 128 of lid 24, lid 24 is installed to the near-end of coupling part 28 Side.Now, it is arranged on periphery wall of the 3rd projection 140 of the inner side of release component 126 along handle 20 to move, and finally more receives and distributes The clamping components 108 of handle 20.Because the 3rd projection 140 is formed inside release component 126, thus ought in figure 3 lid 24 it is relative When handle 20 is pressed downwardly, under the action that release component 126 is pressed slightly outwards, handle 20 can be easily passed over Clamping components 108.By making the 3rd projection 140 cross clamping components 108, the upward direction of lid 24 in figure 3 can be prevented Upper movement.Therefore, the spiral rotating operation of handle 20 becomes impossible, and the flow of the air set by handle 20 ensures In stable state.

In order to avoid the loss of lid 24, one end of not illustrated line in figure can be tied up on handle portion 124, and line is another One end is tied up in figure on not illustrated fluid pressure device S.Further, one end of above-mentioned line can be tied up on pipeline 74.Therefore, may be used To prevent the loss of lid 24.

Next, not illustrated fluid pressure device S in figure will be described, for example, the speed of the piston in cylinder passes through basis The situation that the volume control device 10 of the present embodiment is readjusted.

It is disengaged applied to not illustrated line in the figure of handle portion 124, and lid 24 departs from from handle 20.Now, In the horizontal groove 138 of the taper flat blade insertion release component 126 of the end of such as screwdriver.In addition, release component 126 It is outwardly bent.Therefore, the 3rd projection 140 can depart from from the clamping components 108 of handle 20, therefore lid 24 can be easily Removed from handle 20.

Next, again, handle 20 is pulled up relative to the main part 26 in Fig. 3, then the first engaging portion 56 And the second engagement between engaging portion 110 is released, and needle valve 22 can be revolved with foregoing the same manner Turn operation.

Manner described above, according to the present invention, when the fluid between first port 12 and second port 16 flow When being adjusted by the spiral rotating of needle valve 22, lid 24 configures relative to the handle 20 for rotating needle valve 22, so as to Reliably to prevent handle 20 from undesirably rotating.It may therefore be assured that the not illustrated Fluid pressure in figure in long time Device S, such as cylinder, with continual and steady state reliability service.

Next, the modification of the lid 24 in above-described embodiment is for example shown in Fig. 7 to 10.

According to the modification, for example, two (a pair) arc openings 132 are arranged in lid 24.Each arc opening 132 It is made up of wide portion 134a and narrow portion 134b, narrow portion 134b is connected and narrower than wide portion 134a with wide portion 134a, and Narrow portion 134b arc length is longer than wide portion 134a arc length.

As shown in figure 9, arc opening 132 extends from the top surface of lid 24 to the inner peripheral surface of release component 126, and terminate In the top of the 3rd projection 140.On the top of the 3rd projection 140, it is provided with and tilts down from above to incline to axis is close Inclined portion point 142.

Next, description to be used for the instrument (tool) 146 that lid 24 is dismantled from handle 20.As shown in FIG. 7 and 8, instrument 146 It is made up of the base section 148 of plate-like and a pair of insertion legs 150, insertion leg 150 is configured to the end surface from base section 148 It is provided projectingly in the axial direction.The length of leg 150 is slightly longer than the depth of arc opening 132.Further, the end of leg 150 End is arranged to conical by its shape, and its diameter somewhat reduces in a radially inward direction.

In the wide portion 134a of two legs 150 insertion arc opening 132 of instrument 146, and base section 148 is by direction Lid 24 presses.Then, as shown in Figure 10, leg 150 is directed along arc opening 132, and is pressed and made rake at once Divide 142 radial outward dilations or stretching, extension, so that release component 126 is bent outwardly.Therefore, the 3rd projection 140 can be at once Separated with the clamping components 108 of handle 20.

In order to avoid the loss of instrument 146, as shown in fig. 7, attachment structure can be set in the base section 148 of instrument 146 Part 152.One end of not illustrated line can be tied up on attachment members 152 in figure, and the other end of line can tie up to it is not illustrated in figure On fluid pressure device S or pipeline 74.Therefore, it is possible to prevent the loss of instrument 146.

Embodiments described above is not limited to according to the volume control device of the present invention.It should be appreciated that without departing from In the case of the essential scope of the present invention, various structures additionally or alternatively can be used herein.

Claims

1. a kind of volume control device (10), be configured to by a pair of first ports of shift control (12) of needle valve (22) and The flow of the fluid flowed between second port (16)；Characterized in that, comprising：

The first noumenon (14), the first noumenon (14) includes the first port (12), and the first noumenon (14) wraps Link mechanism (76) is included, supplies or the pipeline (74) of discharge fluid is connected to the link mechanism (76)；

Second body (18), second body (18) is connected to the first noumenon (14), and second body (18) includes The second port (16), fluid are discharged or supplied by the second port (16)；

Handle (20), the handle (20) is connected to the needle valve (22), and the handle (20) is configured to described Under the spinning movement of handle (20), by making the needle valve (22) axially displaced to adjust the flow of fluid；With

Cover (24), the lid (24) removably surrounds the handle (20)；

Wherein, release component (126) configuration formed by groove (136,138) is on the lid (24), and projection (140) is matched somebody with somebody Put on the inner surface of the release component (126), the projection (140) is engaged with the handle (20) to cover (24) by described It is attached to the handle (20)；And

Wherein, the release component (126) by the groove (136,138) around close to the first noumenon (14) side Fulcrum be bent outwardly, so as to discharge the engagement of the projection (140) and the handle (20)；

The first noumenon (14) include the main part (26) that extends in the axial direction and with the axis direction vertically The coupling part (28) of arrangement；

The lid (24) includes otch (128), the otch (128) and the connection positioned at the main part (26) side The partly proximal part adaptation of (28).

2. volume control device (10) as claimed in claim 1, it is characterised in that wherein, shoulder portion (108) is configured described The outside of handle (20), the shoulder portion (108) engage with the projection (140) of the lid (24).

3. volume control device (10) as claimed in claim 1, it is characterised in that wherein：

Arc opening (132) is arranged in the lid (24), and the arc opening (132) is configured to insert tool wherein (146) leg member (150)；And

By the way that the tool (146) is inserted into the arc opening (132), the tool (146) makes the release component (126) It is bent outwardly, so as to discharge the engagement of the projection (140) and the handle (20).

4. volume control device (10) as claimed in claim 1, it is characterised in that wherein, the lid (24) is equipped with handle Partly (124), the handle portion (124) are configured to be attached with confining part.

5. volume control device (10) as claimed in claim 4, it is characterised in that wherein：

Handle portion (124) configuration is in the otch being adapted to the proximal part positioned at the main part (26) side (128) surface.